1. Plug the free end of the provided USB cable into the USB port on your computer. The
microphone’s blue LED will illuminate, indicating the microphone is receiving power. Your
computer will automatically recognize the USB device and install a driver.
2. To select the 670 as your audio input, rst, open your System Preferences.
3. Next, click Sound to display the Sound preference panel.
Apple MAC OS
Output Impedance: 2200
Equivalent Noise Level: 66dB-A
Max.SPL: 120dB(at 1kHz≤1% T.H.D
S/N Ratio: 66dB
Operating Current: 13mA ± 2mA
Typical Frequency Response Curve
Frequency Response (0dB=1V/pa)
4. Click the Input tab and select the “MIC_TEST” as the device for sound input.
5. Click the output tab and make certain “MIC_TEST” is selected as the default output
device.(This should have happened automatically.)
COMPUTER SETUP
7 8
0
30
60
90
120
150
180
210
240
270
300
330
+20
+10
0
-10
-20
-30
20 50 100 200 500
1K 2K
5K 10K 20K
Frequency Hz